Karasu-tengu

Tengu (天狗^?, "heavenly dog") are a type of legendary creature found in Japanese folk religion and are also considered a type of Shinto god (kami) or yōkai (supernatural beings). Although they take their name from a dog-like Chinese demon (Tiangou), the tengu were originally thought to take the forms of birds of prey, and they are traditionally depicted with both human and avian characteristics. The earliest tengu were pictured with beaks, but this feature has often been humanized as an unnaturally long nose, which today is widely considered the tengu's defining characteristic in the popular imagination.

Buddhism long held that the tengu were disruptive demons and of war. Their image gradually softened, however, into one of protective, if still dangerous, spirits of the mountains and forests. Tengu are associated with the ascetic practice of Shugendō, and they are usually depicted in the garb of its followers, the yamabushi.

The tengu in art appears in a variety of shapes. It usually falls somewhere between a large, monstrous bird and a wholly anthropomorphized being, often with a red face or an unusually large or long nose. Early depictions of tengu show them as kite-like beings who can take a human-like form, often retaining avian wings, head or beak. The tengu's long nose seems to have been conceived in the 14th century, likely as a humanization of the original bird's bill. The tengu's long noses ally them with the Shinto deity Sarutahiko, who is described in the Japanese historical text, the Nihon Shoki, with a similar proboscis measuring seven hand-spans in length. In village festivals the two figures are often portrayed with identical red, phallic-nosed mask designs.

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